cpukit, testsuite: Add rtems_printf and rtems_printer support.

This change adds rtems_printf and related functions and wraps the
RTEMS print plugin support into a user API. All references to the
plugin are removed and replaced with the rtems_printer interface.

Printk and related functions are made to return a valid number of
characters formatted and output.

The function attribute to check printf functions has been added
to rtems_printf and printk. No changes to remove warrnings are part
of this patch set.

The testsuite has been moved over to the rtems_printer. The testsuite
has a mix of rtems_printer access and direct print control via the
tmacros.h header file. The support for begink/endk has been removed
as it served no purpose and only confused the code base. The testsuite
has not been refactored to use rtems_printf. This is future work.

1 files changed, 29 insertions, 0 deletions

diff --git a/cpukit/libcsupport/src/print_fprintf.c b/cpukit/libcsupport/src/print_fprintf.c
new file mode 100644
index 0000000000..5e46d1c959
--- /dev/null
+++ b/cpukit/libcsupport/src/print_fprintf.c
@@ -0,0 +1,29 @@
+/**
+ *  @file
+ *
+ *  @brief RTEMS Print Support
+ *  @ingroup libcsupport
+ */
+
+/*
+ * Copyright (c) 2016 Chris Johns <chrisj@rtems.org>
+ * All rights reserved.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems/print.h>
+
+#include <stdio.h>
+
+void rtems_print_printer_fprintf(rtems_printer *printer, FILE *file)
+{
+  printer->context = file;
+  printer->printer = (rtems_print_plugin_t) fprintf;
+}